参数资料
| 型号： | TPS54678RTER |
| 厂商： | Texas Instruments |
| 文件页数： | 1/37页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 6A 16WQFN |
| 标准包装： | 1 |
| 系列： | SWIFT™ |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 4.5 V |
| 输入电压： | 2.95 V ~ 6 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 200kHz ~ 2MHz |
| 电流 - 输出： | 6A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 150°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 16-WQFN 裸露焊盘（3x3） |
| 其它名称： | 296-34809-6 |
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SLVSBF3 – JUNE 2012
2.95 V to 6 V INPUT, 6 A OUTPUT, 2 MHz, SYNCHRONOUS STEP DOWN SWITCHER WITH
INTEGRATED FET ( SWIFT?)
Check for Samples: TPS54678
1
FEATURES
DESCRIPTION
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Two 12 m Ω (typical) MOSFETs for High
Efficiency 6 A Continuous Output Current
200 kHz to 2 MHz Switching Frequency
0.6 V ±1% Voltage Reference Over
Temperature (-40°C to 150°C)
Synchronizes to External Clock
Start up with Pre-Biased Voltage
Power Good Output
Adjustable Slow Start and Sequencing
Cycle-by-Cycle Current Limit and Hiccup
Current Protection
Adjustable Input Voltage UVLO
Thermally Enhanced 16-Pin 3 mm x 3 mm QFN
(RTE)
TPS54678 device is a full featured 6 V, 6 A,
synchronous step down current mode converter with
two integrated MOSFETs.
TPS54678 enables small designs by integrating the
MOSFETs, implementing current mode control to
reduce external component count, reducing inductor
size by enabling up to 2 MHz switching frequency,
and minimizing the IC footprint with a small 3 mm x 3
mm thermally enhanced QFN package.
TPS54678 provides accurate regulation for a variety
of loads with an accurate ±1% Voltage Reference
(V REF ) over temperature.
Efficiency is maximized through the integrated 12 m Ω
MOSFETs. Using the enable pin, shutdown supply
current is reduced by disabling the device.
The output voltage startup ramp is controlled by the
APPLICATIONS
soft start pin that can also be configured for
sequencing or tracking. Monotonic startup is achieved
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Low-Voltage, High-Density Power Systems
Point of Load Regulation for High Performance
DSPs, FPGAs, ASICs and Microprocessors
Broadband, Networking and Optical
Communications Infrastructure
Gaming, DTV and Set-Top Boxes
VIN
VIN
with pre-biased voltage. Under voltage lockout can be
increased by programming the threshold with a
resistor divider on the enable pin. An open drain
power good signal indicates the output is within 93%
to 105% of its nominal voltage.
Cycle-by-cycle current limit, hiccup overcurrent
protection and thermal shutdown protect the device
during an overcurrent condition.
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C I
TPS54678
BOOT
EN
PH
PWRGD
C BOOT
L O
C O
VOUT
R 1
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90
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V OUT = 1.8 V
SS/TR
RT/CLK
VSENSE
R 2
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85
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V IN = 3.3 V
V IN = 5 V
2
3 4
Fsw = 500 KHz
DCR = 7.5 m ?
5
6
C SS
COMP
GND
Current (A)
G020
R T
R 3
C 1
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
SWIFT, PowerPAD are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright ? 2012, Texas Instruments Incorporated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS54678RTET | 功能描述:直流/直流开关转换器 2.95-6Vin,6A,Sync SD Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| TPS54680 | 制造商:TI 制造商全称:Texas Instruments 功能描述:3-V TO 6-V INPUT, 6-A OUTPUT TRACKING SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs (SWIFT) FOR SEQUENCING |
| TPS54680-EP | 制造商:TI 制造商全称:Texas Instruments 功能描述:3-V TO 6-V INPUT, 6-A OUTPUT TRACKING SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETs(SWIFTa?￠)FOR SEQUENCING |
| TPS54680EVM | 功能描述:电源管理IC开发工具 6-A DC/DC Conv RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS54680IPWPRAN | 制造商:Texas Instruments 功能描述: |
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